modified: README.md

README.md

@@ -18,6 +18,7 @@ Kubernetes is an open‑source platform that automates the deployment, scaling,
   - [Patch pv - change to retain policy](#patch-pv---change-to-retain-policy)
   - [Patch pv - remove finalizers](#patch-pv---remove-finalizers)
   - [persistent volume claims](#persistent-volume-claims)
+  - [Create an pod with PVC](#create-an-pod-with-pvc)
 - [kubectl](#kubectl)
   - [Helper pods](#helper-pods)
     - [network testing](#network-testing)
@@ -113,8 +114,6 @@ metadata:
   name: ubuntu-test
   namespace: tests
 spec:
-  #### deploy to an specific node
-  nodeName: chimera-gluten
   containers:
     - name: ubuntu-test
       image: ubuntu
@@ -126,15 +125,34 @@ spec:
       command: ["sh"]  # PID 1 = interactive shell
       stdin: true # keep STDIN open
       tty: true # allocate a terminal
+```
 
-      volumeMounts:
+or using only CLI (auto removes on exiting).
-        - name: data
-          mountPath: /data
 
-  volumes:
+``` bash
-    - name: data
+kubectl run ubuntu-test \
-      persistentVolumeClaim:
+  --image=ubuntu \
-        claimName: data-pvc
+  --restart=Never \
+  --rm \
+  -it -- bash
+```
+
+*Example with busybox, good for network testing.*
+
+``` bash
+kubectl run net-test \
+  --image=busybox \
+  --restart=Never \
+  --rm -it -- sh
+```
+
+*Example with curl, good for network testing.*
+
+``` bash
+kubectl run curl-test \
+  --image=curlimages/curl \
+  --restart=Never \
+  --rm -it -- sh
 ```
 
 **Create an ubuntu pod with and execute command:**
@@ -316,6 +334,41 @@ spec:
       storage: 1Gi
 ```
 
+### Create an pod with PVC
+
+**Create an ubuntu pod for tty access example:**
+
+``` bash
+apiVersion: v1
+kind: Pod
+metadata:
+  name: ubuntu-test
+  namespace: tests
+spec:
+  #### deploy to an specific node
+  nodeName: chimera-gluten
+  containers:
+    - name: ubuntu-test
+      image: ubuntu
+      # In Kubernetes, the pod stays alive as long as PID 1 is running.
+      # so with this options:
+      # - It does not exit automatically.
+      # - It waits for user input forever.
+      # - It behaves like an interactive shell session.
+      command: ["sh"]  # PID 1 = interactive shell
+      stdin: true # keep STDIN open
+      tty: true # allocate a terminal
+
+      volumeMounts:
+        - name: data
+          mountPath: /data
+
+  volumes:
+    - name: data
+      persistentVolumeClaim:
+        claimName: data-pvc
+```
+
 ## kubectl
 
 kubectl is the command‑line tool used to interact with Kubernetes clusters. Think of it as the “remote control” for Kubernetes: it lets you deploy applications, inspect resources, and manage cluster operations directly from your terminal.